Plug flange for barrel heads



y 6, 1935.. D. w, CURTIS ET AL 2,008,245

PLUG FLANGE FOR BARREL HEADS Filed Decv 17, 1954 E INVENTORS 25' 5 3: BY w m M M S02 fa v ATTORNEY Patented July 16, 1935 UNITED: PATENT OFFICE 2,068,243 'G AFG F RTBA REL a s 1 bisicirtsxana na spars, Richmond; Calif-. H

Application December 17, 1934, Serial No. 757,815

5 Claims. (Cl. 285-49) This invention relates to steel barrel or drum In mounting fi 10058 On the barrel head, the heads, and particularly to the construction and body I is placed through the opennig 8 and mounting of the plug-flanges or bosses in such pressed down until the flange l snugly engages heads. the gasket 4. The thin skirt is then deformed 5 Due to the increasing scarcity of suitable wood wa dly as at 9 a lower edge, W Such p for barrel making, steel is being increasingly used Sure that the defor Skirt Dresses against the for this purpose. Inasmuch as the barrels or head flange 6 sufiici y to deflect the e drums are frequently used but once and are then wardly and cause the flange l to bite into the discarded, it is necessary that the cost of their body I, as indicated at Ill. The boss is thus held 10 construction, which includes the provision of a m d p a nt in an a al direction from the 10 flange or'boss to retain the bung plug, be kept as barrel head. low as possibl To insure non-rotation of the boss on the head,

It is therefore the main object of my invention even though great turning pressure is applied to provide a very simple, cheap and yet eflicient t0 the p the dBfOITIiEitiOh Of the Skirt 3 is 3 plug-retaining flange, which is mounted in the a i d u at Spaced points about he CiI'Cum- 15 barrel head in such a manner that leakage is posference thereof. This causes the deformed poritively prevented, and which will not turn or tio s 9 to b e into and deflect he head flan e 5 loosen up even if excessive turning pressure is at correspo pa points y, as dicated placed on the plug. in Fig. 4. The barrel-head flange and skirt are The above object is. carried out by means of thus in effect crimped and locked tog p 20 the specific structure shown in the accompanyv y preventing Qtat 0 e b s on the head.

ing drawing, in which From the above, it will be seen that we have V Fig. 1 is a sectional elevation of the plug boss provided a y Simple, ineXpehSiVe and y ofor flange element, as initially formed. flcient structure for the purpose.

Fig. 2 is a fragmentary section of a steel barrel The boss or flange is formed-42y a simple 25 head, showing the same formed to cooperate with Dressing 0P81ati0hfr0m fls inch l. Simithe boss, larly the barrel head is prepared by a simple Fig. 3 is a sectional elevation of the boss as pressing and punching operation while the assecured to the barrel head. sembling operation is also simple and inexpen- Fig. 4 is a sectional plan on the line 4-4 of sively carried out. 30 Fig. 3. In the form of device shown in Fig. 5, the body Fig. 5 is a sectional view of a somewhat modila is somewhat reduced in diameter adjacent fled construction. the flange 2a as shown at A and with the form- Referring to the characters of reference on the ing of the latter.

drawing, and particularly at present to Figs. 1 Also, when the plug-boss unit is pressed into 35 to 4, I denotes the body of the plug bossa. cylinposition on the drum head flange Ba, the latter drical member of relatively soft steel tapped to is deformed inwardly by the pressing contact of receive the screw-plug. the skirt 3a therewith and so that said skirt and An annular flange 2 isformed with and extends flange 6a are in contact with each other for a outwardly from the outer end of the body, while a portion of their height as shown. relatively thin and short and radially deformable In this manner, a very positive holding of the skirt 3 depends from the outer edge of the flange parts against relative axial movement is ob- 2. A compressible ring gasket 4 is disposed betained. tween the body and skirt and abuts against the What we claim is: flange 2. l. A plug-boss structure for a metal barrel To cooperate with and mount the boss, the thin head comprising a. deformable circular flange sheet-steel barrel head 5 is formed, by a. press, struck outwardly fromthe head, an inwardly with an upstanding circular flange 6, the height projecting flange about the outer edge of the cirof which is substantially that of the skirt 3, while cular flange, a tapped plug-receiving body fltr its outside diameter is slightly less than the inteting closely within the last named flange, and

rior diameter of the skirt. means formed with the body to clampingly en- Projecting inwardly from the upper end of the gage the circular flange and force the last named flange 6 is another flange l, surrounding a circuflange into biting engagement with the body.

lar opening 8 of a size to snugly receive the 2. A plug-boss structure for a metal barrel body I. head comprising a deformable circular flange struck outwardly from the head, an inwardly projecting flange about the outer edge of the circular flange, a tapped plug-receiving body fitting closely within the last named flange, an outwardly projecting flange about the body at its outer edge, a deformable skirt depending from the outer edge of the body flange and extending alongside the circular head-flange, said skirt being pressed inwardly to bindingly engage and deform the circular head flange.

3. A structure as in claim 2-, with a compressible gasket between the body flange and the last named head flange.

4. A structure as in claim 2,-in which the body is of relatively soft metal compared'to the head whereby when the head flange-is deformed, the inwardly projecting head-flange will bite into the body. j r

5. A plug-boss structure for a metal barrel head comprising a deformable circular flange struck outwardly from the head, an inwardly projecting flange about the outer edge of the circular flange, a tapped plugreceiving body fitting closely within the last named flange, an outwardly projecting flange about the body at its outer edge, a deformable skirt depending from the outer edge of the body flange and extending alongside the circular head-flange, said skirt being pressed inwardly at spaced intervals about its outer edge to bindingly engage and deflect the head flanges along corresponding positions of their extent whereby to secure the body to the head flanges against both axial and rotative displacement.

DAVID W. CURTIS. ROSS T. COREY. 

